interTable <-data.frame (Tapply ($ contb_receipt_amt date, list ($ cand_nm date, $ contbr_st date), sum))
I got create a table with the sum total contribution (contb_receipt_amt) of each presidential candidate (cand_nm) in each state (contbr_st). How could from interTable create a table of states where candidate 'Obama' has received greater Contribution? thanks -- View this message in context: http://r.789695.n4.nabble.com/How-to-use-tapply-with-more-than-one-variables-grouped-tp4646948p4646985.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
